Unit 2（）Text A. VocabularyFill in the blank in the following sentence with one of these words and change the form if necessary. (tackle, humility, attain, viable, penchant, dispense, commodity, manipulate, economize, sequential)12. The expert argued that

Unit 2（）Text A. VocabularyFill in the blank in the following sentence with one of these words and change the form if necessary. (tackle, humility, attain, viable, penchant, dispense, commodity, manipulate, economize, sequential)12. The expert argued that Americans needed to become more unified about following public health guidance and take （） steps to return to schools and businesses.
正确答案：sequential